Improvement in tin cans



inited 5mm aient dijijli.

Letters Patent No. 101,707, lated A pril 12, 1870.

IMPROVEMENT IN TIN CANS.

.The Schedule referred to iu these Letters Patent and making part of thesame.

.To all whom lit may concern:

Be it known that I, JOHN J'Osnrn Bunnnnfr, of the city of New York, inthe county and State of New York, have invented a new and Improved TinCan; and I do hereby declare that the following is a full, clear, andexact description thereof, which will enable others skilled in the arttO make and use the same, reference being had to the accompanyingdrawings forming part of this specification.

' 'Figure l is a vertical section of a tin can provided with myimprovements.

Figure 2 is a detail section on an enlarged scale of the top joint.

Similar letters of reference indicate corresponding parts.

This invention has for its object so to construct the l covers andfastenings of sheetmetal cans that such covers, after havingbeen cutopen, shall not have become entirely useless.

Sheet-metal cans, of which the covers are soldered down to make them airtight, are at present uniformly so constructed that when they are openedthe covers are destroyed andbecome useless.

My invention consists in forming, some distance below the top edge ofthe can A, a projecting rib, a, around the same, and in forming adownward-projecting Ilange, b, on the cover B, so Athat in applying thecover the vliange b may be Abent- Oveu. the rib a, as in fig. 2, andthen' soldered tight. When 'the can is to be opened the lia-nge is outat c, above the rib, and its upper part remains on the cover, leavingthe same in good shape for further Ordinary use.

The rib a is formed by doubling the metal Of the can at the upper part,and bending it around a wire, d, which is placed around the can asshown.

The invention consists, also, in inserting in a groove, e, which isformed in the under side of the cover, directly4 above the top edge ofthe canfsome elastic suhstance, j, such as India rubber, glue, or othermaterial, againstwhich the top edge of the can will be pressed, so :isto insure the. security ot' the can, and its air tight inclosure.

Having thus described my invention,

I claim as new and desire to secure by Letters latent- 1. lhesheet-metal can provided with a projecting rib, over which a flange, b,of the cover is fitted, so that by cutting the said ilange, above therib the cover will be loosened but not destroyed, as set forth.

2. The sheet-metal can having its upper end doubled, as speciiied,'andbent around a-wire, d, to form a rib, a, as set fort-l1.

The above specification ot' my invention lne this 14th day of February,1870. Y A JOHN JOSEPH BURKERT. Vtnesses:

GEO. W. MABEE, ALEX. F. ROBERTS.

signed hy i

